Apparatus foe binding books with metallic staples



(No Model.) 2 Sheets-Sheefil.

' G. L. LASGH.

APPARATUS FOR BINDING BOOKS WITH METALLIC STAPLES.

No. 364,526. Patented June 7, 1887 N. PETERS, HwmLdhognpher. Wnhinglnn.I}. C.

(No Model.) 2 -Shets-Sheet 2.

0. L. LASGH.

APPARATUS FOR BINDING BOOKS WITH METALLIC STAPLES.

No. 364,526. Patented June 7. 1887.

'F/c.'4. no.5

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N. Prfifi, Phalo'ljhognphor. Wahington, D.

* sition.

UNITED STATES PATENT OFFICE.

CARL LOUIS LASGH, OF REUDNITZ-LEIPSIG, SAXONY, GERMANY.

, APPARATUS FOR BINDING BOOKS WITH METALLIC STAPLES.

QPECIPICATION forming part of Letters Patent No. 364,526, dated June 7,1887.

Application filed December 15, 1885. Serial No. 185,765.

(No model.) Patented in Germany October 18, 1SB-1,N0. 30,993; in

France November 22, 1884, No. 165,527 in Belgium November 22, 1884, No.66,974; in Austria-Hungary November 24,1884, No. 44,466 and No. 15,286,-in Italy Dcccmbcr 3,1884, No.17,650, and in England December 8,1884, No.16,138.

To all whom, it may concern:

Be it known that I, CARL LoUrs-LAsOH, a subject of the Emperor ofGermany, residing at Reudnitz-Leipsic,in the Kingdom of Saxony andEmpire of Germany, gentleman, have invented new and useful Improvementsin Apparatus for Binding Books and- Similar Objects with MetallicStaples, (for which I have obtained Letters Patent in Great Britain, No.16,138, dated December 8, 1884; in'Germany, No. 80,993, dated October18, 1884; in France, No. 165,527, dated November 22, 1884; in Belgium,No. 66,974, dated November 22, 1884; in Italy, No. 17,650, datedDecember 3, 1884, and in Austria-Hungary, No. 44,466 and No. 15,286,dated November 24, 1884, of which the following is a specification.

This invention consists in certain features of novelty, which arehereinafter particularly pointed out in the claims, being first fullydescribed with reference to the accompanying drawings, in which- Figure1 is a side elevation of the complete apparatus, a portion of the headbeing shown in section. Fig. 2 is a front end elevation of the same, aportion of the frameot' the machine being broken away to show thesprings which hold the clinchinghcad in elevated po- Fig. 3 is a detailview of the clinching mechanism. Fig. 4 is a sect-ion on theline 4 4,Fig. 5, looking in the direction of the arrow. Fig. 5 is a detail viewshowing portions in section and portionsin elevation. Fig. 6 is a planview of the head in which the staplcdriver works.

The frame of the machine consists of a single casting comprising a baseportion, A, and two arms extending upward therefrom, the forward one, A,of which carries at its upper end the mechanism for supporting thesignature while it is being stitched and for clinchingthe staple,whilethe roar one, A, supports the staple-driving mechanism. The whole of thestatendency being to hold the front end of the arm 9 in elevatedposition.

A is a lug projecting from the arm A for limiting the extent to whichthis arm 9 shall be moved by the spring 1. That part of the arm 9 whichprojects rearward from the fulcrum q may be of any shape, that partwhich projects forward being of the shape in cross section which isshown more clearly in Fig. 4that is to say, its top side isrofrectangular shape, so as to form a saddle, a, over which the stapleshang, as shown at s in Fig. 5, its under side being broader, ashereinafter described. The staples are fed forward to the staple-driverby a rod, I, under the influence of a spring, 70, the forward end of thesaid rod being provided with a follower, Z, which is of a rectangularshape (corresponding to the shape of the staples) and extends downwardon both sides of the saddle nin the manner shown in Fig. 5, so as tomaintain the legs of the staples in planes perpendicular to the movementof the bar Z.

9 represents a cap or cover whose exterior may be of any desired shape,but whose interior is of such shape as to fit snugly over the saddle nand bar Z, leaving only the necessary rectangular space as for thepassage of the staples. The formation of this space of properproportions may be insured by forming the arm 9 with rabbets g, for thereception of the lowermost portions of the overhanging sides of thecover, the offsets or shoulders 9 being of such size as to compel theinner walls of the cover to leave the proper space as. The frontextremity of this cap or cover is enlarged so as to form the rearside ofthe head B in which the staple-driver works, and is in addition providedwith bars 9, projecting downward over the sides of the'bottom flange ofthe arm 9, said bars and also the arm being perforated for the passageof a single pin, 9, by which the cover is securely held in place. Theface of the enlarged front end, of the cover 9 is form-ed with arectangular rib or projection, g, which forms the rear wall of thechannel through which the staples pass. Secured to the front side ofthis enlargement 9 by screws 9', is a plate, 71, of the peculiar shapeshown in Fig. 6, its inner side being cut away to form a passage-way forthe staple-driver e and a channel for the staples, the latter being ofslightly greater width than the former. The Staples move in the spaceleft between the outer face of the rib or projection g and the shouldersh of the plate h, while the driver 6 moves 1n the groove cut in theplate h between the shoulders lb.

The front edge of the driver 0 is grooved vertrcally, as at c, for thereception of the extremity of a screw-plug, If, which passes through ascrew-threaded aperture formed in the plate h, a stop, 6, being securedto the driver e within the groove 6", for impinging agalnst the innerend of the screw If, and

thereby limiting the extent to which said drivershall move upwardindependently ofthe head. The driver 6 is operated by ahand-lever, d,whose rear extremityis hinged to the upper end of a link, i, the lowerend of which link.

is hinged at a to the arm a, said lever being provided with a hook, d,for engaging a pin, 0, pro ecting from the driver a. This hook is heldin engagement with the pin 0 by the spring k, whose extremities aresecured, respectively, to the link t and to the feed-bar Z, said springbeing thus made to do double duty. The support for. holding the objectto be stapled is secured to a head, a, secured to the upper extremity ofthe arm A by means of pins and slots a, which permit said head to movefor a short distance in a vertical plane. This head is held normally inelevated position by means of a pair of plate-springs, f, placed 111upright positions, their upper ends being in engagement with theunderside of the head,while their lower ends rest upon shoulders formedon the frame of the machine. This head is formed with a narrow slot, a,between the vertical walls of which are pivoted a pair ofbending-plates, b, whose adjacent free extremities bear upon the topside of a fixed anv11, 0, pro ecting upward within the slot a. For thepurpose of more clearly representing the slots (1 the clinching-plates bare omitted from Fig. 5. On reference to Figs. 2 and 3 it will be foundthat their top sides are straight instead of inclined in a curved mannertoward the free extremities of the plates, as is the case with anexisting device with which I am familiar. If the top sides of theselevers are curved, they will have the effect ofbending the staples inthe maunerin which it is the object of my invention to avoid-z. e., asshown at s. It is also desirable to pivot these levers in a narrow slot,a, having parallel walls which fit close to their sides and serve asbraces to maintain them, constantly in a vertical plane.

When the signatures of books are to be stapled for supporting them, Iprefer to employ thin rules or knife-edges m,which are secured to thevertically-movable head a, so as to form acontinuation thereofprojectingon both sides of the machine. Bysecuringasupport of this character tothe upper end of the arm A, the two sides of the signature may fallsmoothly over itsopposite sides and the stapling be done directly at thefold. A flat table, m, may, however, be provided, as shown by dottedlines in Fig. 1, its under side being provided with brackets in, whichembrace the opposite sides of the rule for holding it in horizontalposition, notches m being formed in the upper sides of the rules m forpermitting the tableto fall until its upper face is flush with the upperedge of the head a. This table is of course apertured,for the passage ofthe head a, and is also provided on its upper side with a guide or stop,m for guiding the article to be stapled to proper place.

The operation of the machine is as follows: The machine may be chargedwith staples by removing the plate It and inserting the staples one byone, or, instead of this method, the cap or cover 9 may be removed bywith drawing the pin This being done, the feed-bar, is retracted, bypulling upon the hook Z, and held in retracted position until thedesired number of staples have been placed astride the saddle a. Thecapis then replaced and the feeder released, whereupon the machine isready for operation. The handle (I being raised, a staple will be fedinto the channel in the head B, and the head being held normallyelevated by the spring t, it is neces sary to depress it so that itslower side will have contact with the article to be stapled. For thispurpose the screw-plug It may be enlarged into a handle. The head beingdepressed into the position shown in the drawings, pressure is exerteddownward on the handle d. During the first part of the descent of theplunger 6, and until the staple has been driven completely through thearti-. cle to be stapled, the clinching-head a is held in its elevatedposition b'y the springs f; but so soon as the staple-driver reaches thelimit of its downward movement within the head B a pin, 1), projectingtherefrom comes in contact with the top side of the head B, therebycompelling said head to descend with the lever (1, overcomestheresistance of the springs f, and causes the head a to descend. Thismovement of the head causes. the plates 1) to assume the position shownin Fig. 3, and to clinch the staple in the manner already intimated.

Springsff of the character herein shown and described are preferable,for the reason that they exert their greatest strength to support thehead a until the staple is inserted in the work, after which furtherpressure will cause them to bend and allow the headn to descend for theclinching operation, their resistance to the downward movementdecreasing in proportion to the extent to which they are bent. Coiledsprings would not answer the purpose, for the reason that they wouldexert their least pressure during the insertion of the staple, and theirresistance would increase as the head descended.

Having described my invention, the followtog IIO

ing is whatIclaim as new therein and desire to seeureby Letters Patent:

1. The combination of ahand-lever, d, having a hook adapted to engagethe staple- 5 driver 6 with said driver, a link, 1', and a spring, 70,the said link and spring being adapted to keep the lever d in gear withthe pin 0 of the driver, substantially asset forth.

2. In a book stapling machine, the combiro nation, with the head 13, thestaple-receptacle, and the staple-driver, of the handle (I,

engaging said lever, the link 2', the feed-bar Z, and the spring k,connected at one end to CARL LOUIS LASGH.

Witnesses: ALBIN' RUBERT, FELIX GEMPER,

Both of .Reudrzizz.

